I took my cam in to get profiled, becuase I wasn't really happy with the cam card sent with it, written in ink, on a 5 x 7 note card.

The Specs I was quoted was 218/227 550/550 on a 114 LSA.

According to this IF i am reading it right, the specs are 234/226 546/552 on a 114 LSA????



So here are the specs

LIFT Dur. Open Close Area
Lobe intake 1
Centerline 118.6 BTDC 0.006 293.9 78.7 BBDC 35.2 ATDC 26.48
0.050 Lift C/L 116.8 BTDC 0.020 264.6 67.6 BBDC 17.0 ATDC 26.29
RUNOUT 0.0025 0.050 234 53.7 BBDC .2 ATDC 25.74
PEAK OPEN ACC 0.000325 0.100 201.1 38.3 BBDC 17.2 BTDC 24.48
PEAK NOSE ACC -0.000285 0.150 173.5 24.9 BBDC 31.4 BTDC 22.71
PEAK CLOSE ACC 0.000305 0.200 144.9 11.1 BBDC 46.1 BTDC 20.35
LIFT @ TDC 0.0506 0.250 110.7 6.1 ABDC 563.2 BTDC 16.23
MINIMUM FLAT 0.300 61.3 30.5 ABDC 88.2 BTDC 9.63
FOLLOWER DIA 0.8639 0.321 --- PEAK CAM LIFT ----
0.546 --- PEAK VALVE LIFT ---
LIFT Dur. Open Close Area
Lobe EXHAUST 1
Centerline 110.6 ATDC 0.006 268.8 30.6 BTDC 72.6 ABDC 25.76
0.050 Lift C/L 111.4 ATDC 0.020 257.6 17.0 BTDC 60.6 ABDC 25.57
RUNOUT 0.0019 0.050 226.8 2.0 BTDC 44.8 ABDC 25.07
PEAK OPEN ACC 0.000315 0.100 194.2 14.0 ATDC 28.2 ABDC 23.77
PEAK NOSE ACC -0.000276 0.150 167.4 27.2 ATDC 14.6 ABDC 22.04
PEAK CLOSE ACC 0.000295 0.200 139.9 40.7 ATDC 0.7 ABDC 19.79
LIFT @ TDC 0.0553 0.250 107.9 56.6 ATDC 15.5 BBDC 15.92
MINIMUM FLAT 0.300 61.9 79.5 ATDC 38.6 BBDC 9.8
FOLLOWER DIA 0.8752 0.3246 --- PEAK CAM LIFT ---
0.552 --- PEAK VALVE LIFT ---

114 LSA
114.5 CL

If its too hard to read, I have this in word format attached.

reviewing this thread, this is a true reverse split cam...
https://ls1tech.com/forums/ls1-domestic-forums/in.../t-439044.html

@ .006 293.4/286.8 = 7.1
@ .050 234.0/226.8 = 7.2
@ .200 144.9/139.9 = 5.0

With a stock intake/TB this may be a good thing... I just never seen a split that large before...

Nor have I seen a traditional split on the lift on a reverse split cam 546/552 doesn't usually follow suit with the duration?? Say shouldn't it be 552/456?

 

The intake centerline before TDC and exhaust after TDC?????????!! That should tell you that your measurements are for the lobes are mixed up.

 

so do you think the profile is messed up?

 

I think the guy that measured your cam messed up and labeled the intake as the exhaust and vise versa. Maybe he didn't recognize the difference of an LS cam. If an inake centerline is before TDC, than the engine would BLOW air up the intake, and suck from the exhaust. Surely the measurements are backwards.

 

well that is closer to the hot cam specs

should be a good cam then 226/234 @550 lift...